EP1890796B1 - Drinking water generation and supply ship - Google Patents
Drinking water generation and supply ship Download PDFInfo
- Publication number
- EP1890796B1 EP1890796B1 EP06763413A EP06763413A EP1890796B1 EP 1890796 B1 EP1890796 B1 EP 1890796B1 EP 06763413 A EP06763413 A EP 06763413A EP 06763413 A EP06763413 A EP 06763413A EP 1890796 B1 EP1890796 B1 EP 1890796B1
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- EP
- European Patent Office
- Prior art keywords
- marine vessel
- drinking water
- ship
- drinking
- reverse osmosis
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/04—Feed pretreatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Definitions
- the invention relates to a drinking water production and supply ship with a ship's hull, the at least one tank for storing the produced drinking water, a tank for receiving seawater and a device for generating drinking water from sea water according to the principle of reverse osmosis (ROM) and transfer devices for the generated Having drinking water to a land station.
- ROM reverse osmosis
- a drinking water production and supply vessel is from the GB 2 256 377 A known.
- the known ship has a number of smaller drinking water production facilities, as they are also known for the supply of passenger steamers or small towns.
- the efficiency of such units, which are about container size, is relatively poor and they are maintenance intensive.
- the produced drinking water is collected in a collection tank until it is handed over to a land station. For delivery, the ship must be close to the land, preferably at a pier.
- the US 2004/0206681 A discloses a drinking water supply vessel with a modular reverse osmosis system whose machines are supplied from a low-voltage on-board electrical system.
- the integration of the drinking water production and supply ship is provided in a flexibly ausgestaltbares transfer system.
- the aim is to ensure optimum energy utilization in the "ship with osmosis system" system.
- a ship is provided according to claim 1.
- the device for generating drinking water is designed as a one-piece large unit and obtains the electrical energy required by her from a marine supply network, which also electrical Propeller engines for driving the ship supplied with electric power.
- the large unit for the production of drinking water forms with its piping an integral part of the ship, which is already manufactured and inserted during the construction phase of the ship.
- the ship's hull and its bandages are designed accordingly.
- each ship ship supply network according to the invention is designed as a medium-voltage network with low-voltage branches. This advantageously reduces the size of the necessary main switchgear and allows a particularly efficient way of distributing energy to the main consumers.
- the power is generated via redundant diesel generator sets and a redundantly constructed network. This results in a long-term reliable operation, which allows in particular a particularly favorable partial load ratio. Unnecessary diesel generator sets can be switched off and the e-energy generators in operation can be run at the optimum operating point.
- the ship according to the invention has a switchgear, which is constructed in two parts and whose parts are each intended for half the drive and generator power. Together with azimuthierenden Ruderpropellerantrieben in also double execution with in each case half achievement results so a particularly operationally safe execution of the Schiffsantriebs-, generator and distribution plants.
- the ship is at least two, but especially four, diesel generator sets for generating the has required electrical energy, which are designed to be operable independently.
- at part load demand and diesel generator sets can be turned off, so that the remaining diesel generator sets can work with the highest efficiency. In this case, the risk of failure of diesel engines of the diesel generator sets can be reduced for only a part-load operation for a long time.
- the ship has an automation system for the generation of electric power, the ship's navigation system and the reverse osmosis system.
- an automation system for the generation of electric power, the ship's navigation system and the reverse osmosis system.
- the automation system can have a selectable load distribution between the ship's propulsion systems and the drives of the reverse osmosis system, so that a drinking water production take place, which is based on the remaining travel distance of the ship and the ship's speed.
- an optimized driving profile can be used, which is developed, for example, in an optimization computer.
- a computationally operating energy management device for the coordination of the individual consumers is also provided on each other and on the power generation devices to achieve optimum energy efficiency.
- the pumps for the tanks and the other facilities of the ship depending on the route and the speed of travel and the required amount of drinking water can be obtained.
- Such consumption-optimized energy management can increase energy efficiency far enough that the energy requirement of stationary systems is reached or even undershot.
- the diesel generator systems of stationary desalination plants usually do not know such a consumption-optimized driving style but work with constant power.
- Drinking water is generally produced in the ship according to the invention at a relatively slow speed, i. in a ride of 4 to 6 kn, but it can also be done while the ship is resting, for example off the coast.
- the ship according to the invention has a position holding control, such as DP-based on the bow thruster, usually two bow thrusters , and acts on the Rudderpropellerantrieb.
- DP-based position-holding controls are known from floating rigs having rudder propellers. They can also be extended to the operation of bow thrusters, so that even for large, seagoing ships a corresponding position holding capability with the help of the DP system (Dynamic Positioning) results.
- the ship operation of the ship according to the invention is controlled and monitored by a ship automation system with alarm and monitoring functions.
- This advantageously also has a charge calculator.
- the tank fillings that change during the journey can be taken into account in terms of stability. This concerns the trim of the ship and the load on the hull.
- the function of the drinking water production plant is also advantageously included in the automation system. Also in this respect, the drinking water production plant forms an integral part of the ship.
- the drinking water production and supply vessel can be provided that it has a multi-stage, designed as a large-scale system drinking water generating device, which has at least one prefiltration stage.
- a prefiltration stage may be followed by an ultrafiltration stage.
- the pre-filtration stage draws seawater from a seawater tank, with the help of the proper trim position of the ship is possible even with increasing storage of drinking water.
- the ultrafiltration stage is followed by an intermediate tank behind which the reverse osmosis system is located using an ion exchanger.
- a water treatment stage follows, from which a fresh water tank is filled, which serves as a transfer tank for the fresh water.
- the abovementioned stages of the drinking water production device are preferably matched to one another by an automation system, the automation system acting on the pumps and valves of the device and having measuring and control devices which enable a trouble-free optimized mode of operation.
- the automation system is advantageously connected to a central switching and display device, in particular on a touch screen basis, which is arranged on the bridge of the ship and insofar complements the navigation system of the ship, the e-nergy production plant, etc.
- a central switching and display device in particular on a touch screen basis, which is arranged on the bridge of the ship and insofar complements the navigation system of the ship, the e-nergy production plant, etc.
- the automation system is supplemented by the energy management system with the optimization device for energy consumption.
- the ship according to the invention is advantageously used as a drinking water production and intermediate storage unit in a drinking water supply system for cities or industrial plants. It is provided that it is optionally in cooperation with another floating cache, eg a water supply buoy or barge. So can be advantageously achieved that the transfer times, ie the times in which the ship has to spend near the coast, are particularly short. Advantageously, it is thus always possible to resort to fresh seawater which is taken from below the ship in an area where the natural salt concentration of seawater prevails. The concentration of seawater is certainly unaffected by coastal and near-surface evaporation processes, which increase the salt concentration of the seawater. As kilometer-long sampling lines and return lines for the stationary desalination plants are avoided, there is also a reduced cost and a lower pump capacity to be installed compared to fixed installations.
- FIG. 1 the drinking water supply and supply ship off the coastline 2.
- the drinking water supply and supply ship 1 can now either create at the terminal 4 or provide a transfer buoy 5, which can be arranged floating, but also on the seabed, as shown in FIG.
- a transfer buoy 5 can be arranged floating, but also on the seabed, as shown in FIG.
- a caching take place in order to accelerate the delivery of drinking water from the drinking water supply and supply ship 1, so that this is enabled to leave the coastal area as quickly as possible.
- variations are possible with regard to the transfer of the produced drinking water, which take into account the special characteristics of the supply and transfer stations.
- barges can be used, which are towed to their unloading after filling.
- FIGURE 2 denote 7 diesel generator sets that are independently operable.
- these diesel generator sets have a capacity of a few megawatts, so that with their energy both the drive system motors 10 and the pump motors 11 of the reverse osmosis system can be operated for a drinking water supply and supply vessel of 20,000 to 30,000 t carrying capacity.
- the diesel generator sets each operate on partial busbars 8, which can be connected to one another via a switching device 9. From the busbars 8, the electrical energy for the drives passes through transformers and converters to the motors 10, each of which operates twice on a cost mechanical rudder propeller 12.
- the ship can be equipped with either one, but also with two rudder propellers 12, so that there is a very high level of safety for the drive.
- electric rudder propeller which have an electric motor with two windings between two propellers in the manner of the Siemens Schottel Propulsors.
- transverse thrusters in the rear and normal diesel-electric drives can be used without departing from the scope of the invention.
- the ship also preferably has two transverse thrusters with motors 13.
- the transverse thruster motors 13, which make about 1 MW, are powered by converters and transformers with energy.
- From each of the two busbars 8 go from branches 14, from which the normal on-board electrical systems are supplied with energy.
- the medium-voltage network preferably a 50/60 Hz network, has approximately a voltage of 6.6 kV, possibly even 11 kV. From this, the bulk consumers, namely the pump drives 11, the rudder propeller 12 and the bow thruster 13 are supplied redundantly with energy, while for the low-voltage electrical system, which connect to the branch 14, a voltage of about 400 or 690 volts is provided.
- there is an on-board power supply both for the drives and for the auxiliary equipment, which combines high safety with good energy efficiency and high flexibility, with a generation and consumption optimization.
- FIG. 3 a flowchart for drinking water production is shown.
- the inlet of the seawater is indicated by 15.
- the seawater is extracted from layers of water under the ship according to the invention and in a region in which there is a normal salt concentration of the seawater.
- the seawater passes through a pump with a capacity of 3500 m 3 / h in an intermediate tank, which also serves trim purposes.
- the intermediate tank is designated 16.
- From the intermediate tank region 16 the seawater passes into the prefiltration region 17 and from there into the ultrafiltration region 18, where a first addition of chemicals takes place, which is illustrated by the arrows 19.
- the physical and chemical processes in a reverse osmosis plant are known and not the subject of this invention. The same applies to the addition of chemicals.
- the water From the ultrafiltration stage 18, the water passes into an intermediate tank 19 and from there directly or via an ion exchanger 20 into the reverse osmosis zone 21. Subsequent to the reverse osmosis (RO), the water passes through a step 22 called lime filtration and then reaches the drinking water tank 23. from the drinking water via the feed pump 24 and flexible pipes or.like devices enters the storage tanks.
- the drawn in a conventional manner pumps have a significant power consumption, therefore, their connection to a medium-voltage network, as provided for in the invention, particularly advantageous.
- the large feed pumps for the water, exemplified by the feed pump 24, are provided by a plurality of small pumps, e.g. Dosing or circulation pumps, supplemented. These are supplied with energy from the low-voltage grid, so that there is also a clear division of tasks for medium and low voltage in the reverse osmosis system.
- the use of medium voltage systems is not widespread in commercial shipping, however, the advantages that result from the medium voltage, switching and supply system for the ship according to the invention, are so significant that it is worthwhile to use the inventive unconventional technique.
- the on-board electrical system is very efficient for a ship of the intended size of 20,000 to 40,000 t (about 8 MW propulsion power and 8 MW power supply for the drinking water generation plant).
- the drinking water production plant generates approx. 2000 m 3 per hour.
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Abstract
Description
Die Erfindung betrifft ein Trinkwassererzeugungs- und Versorgungsschiff mit einem Schiffsrumpf, der mindestens einen Tank zum Speichern des erzeugten Trinkwassers, einen Tank zur Aufnahme von Seewasser und eine Einrichtung zur Erzeugung von Trinkwasser aus Meerwasser nach dem Prinzip der Umkehrosmose (ROM) sowie Übergabevorrichtungen für das erzeugte Trinkwasser zu einer Landstation aufweist.The invention relates to a drinking water production and supply ship with a ship's hull, the at least one tank for storing the produced drinking water, a tank for receiving seawater and a device for generating drinking water from sea water according to the principle of reverse osmosis (ROM) and transfer devices for the generated Having drinking water to a land station.
Ein dem Vorstehenden entsprechendes Trinkwassererzeugungs-und Versorgungsschiff ist aus der
Die
Aus der
Es ist Aufgabe der Erfindung, ein Trinkwassererzeugungs- und Versorgungsschiff anzugeben, das wirtschaftlich zuverlässig und wartungsarm sowie umweltverträglich Trinkwasser erzeugen und auch von einer Position in größerem Abstand zur Küste abgeben kann. Hierfür ist die Einbindung des Trinkwassererzeugungs- und Versorgungsschiffs in ein flexibel ausgestaltbares Übergabesystem vorgesehen. Dabei soll eine optimale Energieausnutzung in dem System "Schiff mit Osmoseanlage" gewährleistet werden.It is an object of the invention to provide a drinking water supply and supply ship that produce economically reliable and low maintenance and environmentally friendly drinking water and can also deliver from a position at a greater distance to the coast. For this purpose, the integration of the drinking water production and supply ship is provided in a flexibly ausgestaltbares transfer system. The aim is to ensure optimum energy utilization in the "ship with osmosis system" system.
Zur Lösung der Aufgabe ist ein Schiff gemäß Anspruch 1 vorgesehen. Die Einrichtung zur Erzeugung von Trinkwasser ist als einteilige Großeinheit ausgebildet und bezieht die von ihr benötigte Elektroenergie aus einem Schiffsversorgungsnetz, das auch elektrische Propellermotoren für den Antrieb des Schiffes mit Elektroenergie versorgt. Die Großeinheit zur Erzeugung von Trinkwasser bildet dabei mit ihrer Verrohrung einen integralen Bestandteil des Schiffes, der schon während der Bauphase des Schiffes gefertigt und eingefügt wird. Der Schiffsrumpf und seine Verbände werden entsprechend entworfen. So kann erfindungsgemäß ein kostenoptimiertes Wassererzeugungs- und Versorgungsschiff gebaut werden.To solve the problem, a ship is provided according to
In der Erfindung ist vorgesehen, dass das in jedem Schiff vorhandene Schiffsversorgungsnetz erfindungsgemäß als Mittelspannungsnetz mit Niederspannungsabzweigen ausgebildet ist. Dies vermindert vorteilhaft die Baugröße der notwendigen Hauptschaltanlagen und ermöglicht eine besonders effiziente Art der Energieverteilung zu den Hauptverbrauchern.In the invention, it is provided that the present in each ship ship supply network according to the invention is designed as a medium-voltage network with low-voltage branches. This advantageously reduces the size of the necessary main switchgear and allows a particularly efficient way of distributing energy to the main consumers.
In der Erfindung ist weiterhin vorgesehen, dass die Energieerzeugung über redundante Dieselgeneratorsätze und ein redundant aufgebautes Netz erfolgt. So ergibt sich ein langzeitig zuverlässiger Betrieb, der insbesondere ein besonders günstiges Teillastverhältnis ermöglicht. Nicht benötigte Dieselgeneratorsätze können abgeschaltet werden, die in Betrieb gehaltenen E-Energieerzeuger können im optimalen Betriebspunkt gefahren werden.In the invention, it is further provided that the power is generated via redundant diesel generator sets and a redundantly constructed network. This results in a long-term reliable operation, which allows in particular a particularly favorable partial load ratio. Unnecessary diesel generator sets can be switched off and the e-energy generators in operation can be run at the optimum operating point.
In der Erfindung ist z̵udem vorgesehen, dass das erfindungsgemäße Schiff eine Schaltanlage aufweist, die zweiteilig aufgebaut ist und deren Teile jeweils für die halbe Antriebs- und Generatorleistung bestimmt sind. Zusammen mit azimuthierenden Ruderpropellerantrieben in ebenfalls doppelter Ausführung mit jeweils halber Leistung ergibt sich so eine besonders betriebssichere Ausführung der Schiffsantriebs-, Generator- und Verteilungsanlagen. Das Schiff ist mindestens zwei, insbesondere jedoch vier, Dieselgeneratorsätze zur Erzeugung der benötigten Elektroenergie aufweist, die unabhängig voneinander betreibbar ausgebildet sind. So ergibt sich auch der erwähnte Vorteil, dass bei Teillastbedarf auch Dieselgeneratorsätze abgeschaltet werden können, so dass die verbleibenden Dieselgeneratorsätze mit höchstem Wirkungsgrad arbeiten können. Dabei kann auch das Ausfallrisiko der Dieselmotoren der Dieselgeneratorsätze bei nur Teillastbetrieb über längere Zeit gesenkt werden.In the invention, it is additionally provided that the ship according to the invention has a switchgear, which is constructed in two parts and whose parts are each intended for half the drive and generator power. Together with azimuthierenden Ruderpropellerantrieben in also double execution with in each case half achievement results so a particularly operationally safe execution of the Schiffsantriebs-, generator and distribution plants. The ship is at least two, but especially four, diesel generator sets for generating the has required electrical energy, which are designed to be operable independently. Thus, there is also the mentioned advantage that at part load demand and diesel generator sets can be turned off, so that the remaining diesel generator sets can work with the highest efficiency. In this case, the risk of failure of diesel engines of the diesel generator sets can be reduced for only a part-load operation for a long time.
In Ausgestaltung der Erfindung ist weiterhin vorgesehen, dass das Schiff ein Automatisierungssystem für die Erzeugung der Elektroenergie, die Fahranlage des Schiffes und die Umkehrosmoseanlage aufweist. So kann ein besonders sicherer Betrieb erreicht werden, da Bedienungsfehler vermieden werden können. Es ist dabei von besonderem Vorteil, dass das Automatisierungssystem eine wählbare Lastaufteilung zwischen den Schiffsantrieben und den Antrieben der Umkehrosmoseanlage aufweisen kann, so kann eine Trinkwassererzeugung stattfinden, die sich an der Restfahrstrecke des Schiffes und der Schiffsgeschwindigkeit orientiert. Hierfür ist ein optimiertes Fahrprofil einsetzbar, das etwa in einem Optimierungsrechner erarbeitet wird.In an embodiment of the invention, it is further provided that the ship has an automation system for the generation of electric power, the ship's navigation system and the reverse osmosis system. Thus, a particularly safe operation can be achieved because operator error can be avoided. It is of particular advantage that the automation system can have a selectable load distribution between the ship's propulsion systems and the drives of the reverse osmosis system, so that a drinking water production take place, which is based on the remaining travel distance of the ship and the ship's speed. For this purpose, an optimized driving profile can be used, which is developed, for example, in an optimization computer.
In Ausgestaltung der Erfindung ist weiterhin eine rechentechnisch arbeitende Energiemanagementeinrichtung für die Abstimmung der einzelnen Verbraucher aufeinander und auf die Energieerzeugungseinrichtungen zur Erreichung einer optimalen Energieeffizienz vorgesehen. So kann immer die günstigste Lastaufteilung zwischen Antrieb und Umkehrosmoseeinrichtung, den Pumpen für die Tanks und den weiteren Einrichtungen des Schiffes in Abhängigkeit von der Fahrtstrecke und der Fahrtgeschwindigkeit sowie der benötigten Trinkwassermenge erhalten werden. Ein derartiges verbrauchsoptimiertes Energiemanagement kann die Energieeffizienz soweit steigern, dass der Energiebedarf von stationären Anlagen erreicht oder sogar unterschritten wird.In an embodiment of the invention, a computationally operating energy management device for the coordination of the individual consumers is also provided on each other and on the power generation devices to achieve optimum energy efficiency. Thus, always the most favorable load sharing between drive and reverse osmosis device, the pumps for the tanks and the other facilities of the ship depending on the route and the speed of travel and the required amount of drinking water can be obtained. Such consumption-optimized energy management can increase energy efficiency far enough that the energy requirement of stationary systems is reached or even undershot.
Die Dieselgeneratoranlagen von ortsfesten Meerwasserentsalzungsanlagen kennen in der Regel eine derartige verbrauchsoptimierte Fahrweise nicht sondern arbeiten mit konstanter Leistung.The diesel generator systems of stationary desalination plants usually do not know such a consumption-optimized driving style but work with constant power.
Die Trinkwassererzeugung erfolgt bei dem erfindungsgemäßen Schiff in der Regel bei relativ langsamer Fahrt, d.h. bei einer Fahrt von 4 bis 6 kn, sie kann aber auch bei Stillliegen des Schiffes, etwa vor der Küste, erfolgen. Sowohl für diesen Fall als auch für die Übergabe des erzeugten Trinkwassers auf eine Trinkwasseraufnahmeboje oder eine Barge, die auch als Zwischenspeicher dienen kann, weist das erfindungsgemäße Schiff eine Positionshaltesteuerung, etwa auf DP-Basis, auf, die auf Bugstrahlruder, in der Regel zwei Bugstrahlruder, und auf den Ruderpropellerantrieb einwirkt. Entsprechende Positionshaltesteuerungen auf DP-Basis sind von schwimmenden Bohrinseln bekannt, die Ruderpropeller aufweisen. Sie können auch auf die Betätigung von Bugstrahlrudern ausgeweitet werden, so dass sich auch für große, seegehende Schiffe eine entsprechende Positionshaltemöglichkeit mit Hilfe des DP-Systems (Dynamic Positioning) ergibt.Drinking water is generally produced in the ship according to the invention at a relatively slow speed, i. in a ride of 4 to 6 kn, but it can also be done while the ship is resting, for example off the coast. Both for this case and for the transfer of the drinking water generated on a drinking water bucket or a barge, which can also serve as a cache, the ship according to the invention has a position holding control, such as DP-based on the bow thruster, usually two bow thrusters , and acts on the Rudderpropellerantrieb. Corresponding DP-based position-holding controls are known from floating rigs having rudder propellers. They can also be extended to the operation of bow thrusters, so that even for large, seagoing ships a corresponding position holding capability with the help of the DP system (Dynamic Positioning) results.
Der Schiffsbetrieb des erfindungsgemäßen Schiffs wird von einem Schiffsautomatisierungssystem mit Alarm- und Monitoringfunktionen gesteuert und überwacht. Dieses weist vorteilhaft auch einen Ladungsrechner auf. So kann insbesondere den während der Fahrt wechselnden Tankfüllungen stabilitätsmäßig Rechnung getragen werden. Dies betrifft den Trimm des Schiffes und die Belastung des Rumpfes. Auch die Funktion der Trinkwassererzeugungsanlage wird vorteilhaft mit in das Automatisierungssystem mit einbezogen. Auch insofern bildet die Trinkwassererzeugungsanlage einen integralen Schiffsbestandteil.The ship operation of the ship according to the invention is controlled and monitored by a ship automation system with alarm and monitoring functions. This advantageously also has a charge calculator. In particular, the tank fillings that change during the journey can be taken into account in terms of stability. This concerns the trim of the ship and the load on the hull. The function of the drinking water production plant is also advantageously included in the automation system. Also in this respect, the drinking water production plant forms an integral part of the ship.
In Ausgestaltung des Trinkwassererzeugungs- und Versorgungsschiffs kann vorgesehen werden, dass es eine mehrstufige, als Großanlage ausgebildete Trinkwassererzeugungseinrichtung aufweist, die zumindest eine Vorfiltrationsstufe besitzt. An die Vorfiltrationsstufe kann sich eine Ultrafiltrationsstufe anschließen. Die Vorfiltrationsstufe entnimmt Seewasser aus einem Seewassertank, mit dessen Hilfe die ordnungsgemäße Trimmlage des Schiffes auch bei zunehmender Speicherung von Trinkwasser möglich ist.In an embodiment of the drinking water production and supply vessel can be provided that it has a multi-stage, designed as a large-scale system drinking water generating device, which has at least one prefiltration stage. To the Pre-filtration stage may be followed by an ultrafiltration stage. The pre-filtration stage draws seawater from a seawater tank, with the help of the proper trim position of the ship is possible even with increasing storage of drinking water.
Es kann weiterhin vorgesehen werden, dass sich an die Ultrafiltrationsstufe ein Zwischentank anschließt, hinter dem sich unter Benutzung eines Ionentauschers die Umkehrosmoseanlage befindet.It may further be provided that the ultrafiltration stage is followed by an intermediate tank behind which the reverse osmosis system is located using an ion exchanger.
Weiterhin kann vorgesehen werden, dass sich im Anschluss an die Umkehrosmoseanlage eine Wasseraufbereitungsstufe anschließt, aus der ein Frischwassertank befüllt wird, der als Übergabetank für das Frischwasser dient.Furthermore, it can be provided that, following the reverse osmosis system, a water treatment stage follows, from which a fresh water tank is filled, which serves as a transfer tank for the fresh water.
Bevorzugt sind die vorstehend genannten Stufen der Trinkwassererzeugungseinrichtung durch ein Automatisierungssystem aufeinander abgestimmt, wobei das Automatisierungssystem auf die Pumpen und Ventile der Einrichtung wirkt und Mess- und Regelorgane aufweist, die eine störungsfreie optimierte Betriebsweise ermöglichen.The abovementioned stages of the drinking water production device are preferably matched to one another by an automation system, the automation system acting on the pumps and valves of the device and having measuring and control devices which enable a trouble-free optimized mode of operation.
Das Automatisierungssystem ist vorteilhaft mit einer zentralen Schalt- und Anzeigeeinrichtung verbunden, insbesondere auf Touch Screen-Basis, die auf der Brücke des Schiffes angeordnet ist und insoweit die Fahranlage des Schiffes, die E-nergieerzeugungsanlage etc. ergänzt. So ist ein sicherer Ein-Mann-Betrieb des Schiffes bei gleichzeitiger optimierter Funktionsweise aller Einrichtungen möglich. Ergänzt wird das Automatisierungssystem durch das Energiemanagementsystem mit der Optimierungseinrichtung für den Energieverbrauch.The automation system is advantageously connected to a central switching and display device, in particular on a touch screen basis, which is arranged on the bridge of the ship and insofar complements the navigation system of the ship, the e-nergy production plant, etc. Thus, a safe one-man operation of the ship while optimizing the functioning of all facilities is possible. The automation system is supplemented by the energy management system with the optimization device for energy consumption.
Das erfindungsgemäße Schiff wird vorteilhaft als Trinkwassererzeugungs- und Zwischenspeichereinheit in einem Trinkwasservorsorgungssystem für Städte oder Industrieanlagen verwendet. Es ist dabei vorgesehen, dass es wahlweise im Zusammenwirken mit einem weiteren schwimmenden Zwischenspeicher, z.B. einer Wasserversorgungsboje oder einer Barge, verwendet wird. So kann vorteilhaft erreicht werden, dass die Übergabezeiten, d.h. die Zeiten, in denen das Schiff in Küstennähe verbringen muss, besonders kurz werden. Vorteilhaft kann so immer auf frisches Seewasser zurückgegriffen werden, das unterhalb des Schiffes in einem Gebiet, in dem die natürliche Salzkonzentration des Seewassers herrscht, entnommen wird. So ist die Konzentration des Seewassers mit Sicherheit unbeeinflusst von küstennahen und oberflächennahen Verdunstungsvorgängen, die die Salzkonzentration des Meerwassers erhöhen. Da so kilometerlange Entnahmeleitungen und Rückleitungen für die ortsfesten Meerwasserentsalzungsanlagen vermieden werden, ergibt sich auch ein verringerter Kostenaufwand und eine geringere zu installierende Pumpenleistung im Vergleich zu ortsfesten Anlagen.The ship according to the invention is advantageously used as a drinking water production and intermediate storage unit in a drinking water supply system for cities or industrial plants. It is provided that it is optionally in cooperation with another floating cache, eg a water supply buoy or barge. So can be advantageously achieved that the transfer times, ie the times in which the ship has to spend near the coast, are particularly short. Advantageously, it is thus always possible to resort to fresh seawater which is taken from below the ship in an area where the natural salt concentration of seawater prevails. The concentration of seawater is certainly unaffected by coastal and near-surface evaporation processes, which increase the salt concentration of the seawater. As kilometer-long sampling lines and return lines for the stationary desalination plants are avoided, there is also a reduced cost and a lower pump capacity to be installed compared to fixed installations.
Die Erfindung wird anhand von Zeichnungen näher erläutert, aus denen, ebenso wie aus den Unteransprüchen, auch weitere erfinderische Einzelheiten entnehmbar sind.The invention will be explained in more detail with reference to drawings, from which, as well as from the dependent claims, further inventive details are removed.
Im Einzelnen zeigen:
- FIG 1
- einen Küstenbereich mit Versorgungstanks für Trinkwas- ser sowie einem auf Position gehaltenen erfindungsge- mäßen Schiff,
- FIG 2
- ein Prinzipschaltbild der schiffseigenen Mittelspan- nungseinrichtung mit den Hauptantrieben und
- FIG 3
- ein Flussdiagramm der erfindungsgemäßen Trinkwasserer- zeugungseinrichtung.
- FIG. 1
- a coastal area with supply tanks for drinking water and a ship in position according to the invention,
- FIG. 2
- a schematic diagram of the ship's medium voltage device with the main drives and
- FIG. 3
- a flow chart of the drinking water production device according to the invention.
In dem Ausführungsbeispiel bezeichnet 1 in
In
Außer den Ruderpropellern 12 weist das Schiff auch vorzugsweise zwei Querstrahlruder mit Motoren 13 auf. Auch die Querstrahlrudermotoren 13, die etwa 1 MW leisten, werden über Stromrichter und Transformatoren mit Energie versorgt. Von jeder der beiden Sammelschienen 8 gehen Abzweige 14 ab, aus denen die normalen Bordstromnetze mit Energie versorgt werden. Das Mittelspannungsnetz, vorzugsweise ein 50/60/Hz-Netz, weist etwa eine Spannung von 6,6 kV, ggf. auch von 11 kV, auf. Hieraus werden die Großverbraucher, nämlich die Pumpenantriebe 11, der Ruderpropeller 12 und die Bugstrahlruder 13 redundant mit Energie versorgt, während für die Niederspannungsbordnetze, die sich an den Abzweig 14 anschließen, eine Spannung von etwa 400 oder 690 Volt vorgesehen ist. Insgesamt ergibt sich eine Bordstromversorgung, und zwar sowohl für die Antriebe als auch für die Hilfseinrichtungen, die eine hohe Sicherheit bei guter Energieausnutzung und hoher Flexibilität, mit einer Erzeugungs- und Verbrauchsoptimierung verbindet.In addition to the
Die Optimierung erfolgt in einem nicht näher erläuterten Optimierungssystem, das in seinen Grundzügen bereits aus der allgemeinen Automatisierungstechnik, etwa von Industrieanlagen, bekannt ist. Auch bei stationären Industrieanlagen wird heute in erhöhtem Maß ein Energiemanagement betrieben, das den Energieverbrauch einer Industrieanlage, und um nichts anderes handelt es sich bei einem erfindungsgemäßen Schiff, optimiert.The optimization takes place in an optimization system which is not explained in more detail and which is already known in its basic features from general automation technology, for example from industrial plants. Even in stationary industrial plants today an energy management is operated to an increased degree, the energy consumption of an industrial plant, and nothing else is in a ship according to the invention, optimized.
Aus
Aus der Ultrafiltrationsstufe 18 gelangt das Wasser in einen Zwischentank 19 und von dort direkt oder über einen Ionentauscher 20 in den Umkehrosmosebereich 21. Anschließend an die Umkehrosmose (RO) durchläuft das Wasser eine als Lime-Filtration bezeichnete Stufe 22 und gelangt dann zum Trinkwassertank 23, aus dem das Trinkwasser über die Förderpumpe 24 und über flexible Rohrleitungen oder.ähnliche Einrichtungen in die Vorratstanks gelangt. Die in üblicher Weise gezeichneten Pumpen haben eine erhebliche Leistungsaufnahme, daher ist ihr Anschluss an ein Mittelspannungsnetz, wie er erfindungsgemäß vorgesehen ist, besonders vorteilhaft. Die großen Förderpumpen für das Wasser, beispielhaft ist die Förderpumpe 24 zu sehen, werden durch eine Vielzahl kleiner Pumpen, z.B. Dosierungs- oder Umwälzpumpen, ergänzt. Diese werden aus dem Niederspannungsnetz mit Energie versorgt, so dass sich auch bei der Umkehrosmoseanlage eine eindeutige Aufgabenteilung für Mittel- und Niederspannung ergibt.From the
Die Verwendung von Mittelspannungsanlagen ist in der Handelsschifffahrt noch nicht verbreitet, die Vorteile, die sich aus der Mittelspannungs-, Schalt- und Versorgungsanlage für das erfindungsgemäße Schiff ergeben, sind jedoch so erheblich, dass es sich lohnt, auf die erfindungsgemäße unkonventionelle Technik zurückzugreifen. Das Bordnetz ist für ein Schiff der vorgesehenen Größe von 20 000 bis 40 000 t sehr leistungsfähig (etwa 8 MW Antriebs- und 8 MW Versorgungsleistung für die Trinkwassererzeugungsanlage). Die Trinkwassererzeugungsanlage erzeugt ca. 2000 m3 je Stunde.The use of medium voltage systems is not widespread in commercial shipping, however, the advantages that result from the medium voltage, switching and supply system for the ship according to the invention, are so significant that it is worthwhile to use the inventive unconventional technique. The on-board electrical system is very efficient for a ship of the intended size of 20,000 to 40,000 t (about 8 MW propulsion power and 8 MW power supply for the drinking water generation plant). The drinking water production plant generates approx. 2000 m 3 per hour.
Claims (4)
- Drinking-water production and supply marine vessel (1) having an electrical steering propeller drive (10, 12) and a tank (23) for the drinking water that is produced, a sea water tank (16) and a reverse osmosis device (21), as well as transfer apparatuses (5, 6) for transferring the drinking water that is produced to a land station (3), wherein the reverse osmosis device (21) is in the form of an integral large unit which, together with its pipe system, forms an integral component of the marine vessel (1) and which draws its electrical power from a marine vessel power supply system (8, 8), which also supplies electrical power to the steering propeller drive (10, 12), wherein the marine vessel power supply system (8, 8) is in the form of a medium-voltage system (8, 8) with low-voltage outgoers (14), wherein the marine vessel power supply system (8, 8) is in the form of a redundant power supply system with redundant diesel generator sets (7) for generation of the electrical power and has a two-part switchgear installation (9) whose parts are in each case designed for half the propulsion and generator power, wherein the steering propeller drive (10, 12) has at least one, and preferably two azimuth steering propellers (12) in the stern area, which preferably each have two electric motors (10) as propeller propulsion motors, wherein large feed pumps of the reverse osmosis device (21) for the water are supplied with electrical power from the marine-vessel power supply system (8, 8), which is in the form of a medium-voltage power supply system (8, 8), and wherein small pumps of the reverse osmosis process, for example metering pumps or circulating pumps, are supplied with electrical power from the low-voltage power supply system.
- Drinking-water production and supply marine vessel according to Claim 1, characterized in that the marine vessel has a position maintenance controller, in particular based on GPS, which acts on the steering propellers (12) of the marine vessel and on a bow thruster or thrusters.
- Drinking-water production and supply marine vessel according to Claim 1 or 2, characterized in that the marine vessel operation is controlled and monitored by a marine vessel automation system with alarm and monitoring functions, with the marine vessel automation system having a load computer and, in particular, also being connected to a monitoring system for the drinking-water production installation.
- Drinking-water production and supply marine vessel according to Claim 1, characterized in that the marine vessel has a power management device, which operates on a computer basis, for matching the load splitting between the marine vessel propulsion and the device for reverse osmosis to one another and to the power generating devices in order to achieve optimum energy efficiency.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102005025428A DE102005025428B4 (en) | 2005-06-02 | 2005-06-02 | Drinking water production and supply ship |
PCT/EP2006/062774 WO2006128886A2 (en) | 2005-06-02 | 2006-05-31 | Drinking water generation and supply ship |
Publications (2)
Publication Number | Publication Date |
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EP1890796A2 EP1890796A2 (en) | 2008-02-27 |
EP1890796B1 true EP1890796B1 (en) | 2011-03-30 |
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EP06763413A Not-in-force EP1890796B1 (en) | 2005-06-02 | 2006-05-31 | Drinking water generation and supply ship |
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EP (1) | EP1890796B1 (en) |
KR (1) | KR20080028899A (en) |
CN (1) | CN101222971B (en) |
AT (1) | ATE503558T1 (en) |
DE (2) | DE102005025428B4 (en) |
DK (1) | DK1890796T3 (en) |
ES (1) | ES2360814T3 (en) |
NO (1) | NO20080011L (en) |
WO (1) | WO2006128886A2 (en) |
Families Citing this family (8)
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DE202009016240U1 (en) | 2009-11-27 | 2010-04-29 | Weihmann, Andreas, Dipl.-Designer | Water recovery system technology |
WO2013004240A1 (en) * | 2011-07-06 | 2013-01-10 | Grundfos Holding A/S | A method for producing and storing desalinated water on a marine vessel |
EP2735080B1 (en) * | 2011-07-20 | 2017-01-25 | Cameron International Corporation | Energy and data distribution system |
KR101466105B1 (en) * | 2013-01-11 | 2014-11-28 | 삼성중공업 주식회사 | Fuel cells system and method for load following thereof |
EP3919369A4 (en) * | 2019-01-29 | 2022-11-23 | López Palancar, Luis | Vessel for desalinating salt water, converting same into drinking water and generating electrical energy |
DK201900168A1 (en) | 2019-02-06 | 2021-01-20 | Aridity Aps | Procedure for purifying seawater. |
DE102019210881A1 (en) * | 2019-07-23 | 2021-01-28 | Siemens Aktiengesellschaft | Method for providing a mobile water supply |
CN114352941B (en) * | 2021-12-20 | 2023-08-08 | 中船邮轮科技发展有限公司 | Post wheel cold drink water distribution system |
Citations (2)
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DE4340747C1 (en) * | 1993-11-30 | 1995-04-27 | Nord Systemtechnik | Ship propulsion system with two propellers rotating in an opposed manner |
DE10128152A1 (en) * | 2001-06-11 | 2002-12-19 | Siemens Ag | Ship's drive system with reduced on-board electrical system distortion factor, has current converters supplying propeller motors that are connected to on-board electrical system |
Family Cites Families (7)
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GB9109579D0 (en) * | 1991-05-02 | 1991-06-26 | Intersea Research And Dev Limi | Desalination plant |
DE19648322A1 (en) * | 1996-11-22 | 1998-07-30 | Hapke Heinz | Universal marine solar-powered desalination plant based on solar collection deck |
FR2802508B1 (en) * | 1999-12-20 | 2002-02-15 | Dessalator | SEAWATER DESALINATION SYSTEM FOR BOATS |
EP1120556B1 (en) * | 2000-01-28 | 2003-07-09 | Gianfranco Bianchi | Multifunctional operating unit for nautical use |
ES2165824B1 (en) * | 2000-09-27 | 2003-10-16 | Dyta En Y Medio Ambiente S A L | AUTOPROPULATED AUTOMOTIVE DESALINATION PLANT ASSISTED BY RENEWABLE ENERGIES. |
DE10102740A1 (en) * | 2001-01-22 | 2002-08-01 | Siemens Ag | Propulsion for ships |
US7416666B2 (en) * | 2002-10-08 | 2008-08-26 | Water Standard Company | Mobile desalination plants and systems, and methods for producing desalinated water |
-
2005
- 2005-06-02 DE DE102005025428A patent/DE102005025428B4/en not_active Expired - Fee Related
-
2006
- 2006-05-31 DE DE502006009210T patent/DE502006009210D1/en active Active
- 2006-05-31 DK DK06763413.9T patent/DK1890796T3/en active
- 2006-05-31 WO PCT/EP2006/062774 patent/WO2006128886A2/en active Application Filing
- 2006-05-31 EP EP06763413A patent/EP1890796B1/en not_active Not-in-force
- 2006-05-31 ES ES06763413T patent/ES2360814T3/en active Active
- 2006-05-31 CN CN2006800190762A patent/CN101222971B/en not_active Expired - Fee Related
- 2006-05-31 KR KR1020077031003A patent/KR20080028899A/en active Search and Examination
- 2006-05-31 AT AT06763413T patent/ATE503558T1/en active
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4340747C1 (en) * | 1993-11-30 | 1995-04-27 | Nord Systemtechnik | Ship propulsion system with two propellers rotating in an opposed manner |
DE10128152A1 (en) * | 2001-06-11 | 2002-12-19 | Siemens Ag | Ship's drive system with reduced on-board electrical system distortion factor, has current converters supplying propeller motors that are connected to on-board electrical system |
Also Published As
Publication number | Publication date |
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EP1890796A2 (en) | 2008-02-27 |
DE102005025428B4 (en) | 2007-08-09 |
CN101222971A (en) | 2008-07-16 |
DE102005025428A1 (en) | 2006-12-07 |
ES2360814T3 (en) | 2011-06-09 |
CN101222971B (en) | 2012-07-04 |
WO2006128886A2 (en) | 2006-12-07 |
KR20080028899A (en) | 2008-04-02 |
DE502006009210D1 (en) | 2011-05-12 |
WO2006128886A3 (en) | 2007-06-14 |
NO20080011L (en) | 2008-01-02 |
DK1890796T3 (en) | 2011-07-18 |
ATE503558T1 (en) | 2011-04-15 |
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